Question

4 )
10। সৰল কৰা । (i) x(y- Z) - y ( Z -X
) - Z ( X-y)​

Answer 1

$= x(y - z) - y(z - x) - z(x - y) \\ = xy - xz - yz + xy - zx + zy \\ = xy + xy - xz - xz - yz + yz \\ = 2xy - 2zx \\ = 2x(y - z)$

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